Good news, Mac owners! For a long time we had been chasing down the cause of a bug on some hardware configurations which was making the game not display certain screens correctly.
Although we can't be completely sure this has solved the problem in every single case, his new patch should sort out issues experienced by Mac users where the gameplay screen can go pink, black or red and not properly display the game. The team thank all the mac users for their patience with this issue, please do let us know if it's fixed or if the problem is still persisting for some users.